CN116177929A - Solid waste base building template and preparation method thereof - Google Patents
Solid waste base building template and preparation method thereof Download PDFInfo
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- CN116177929A CN116177929A CN202310204903.0A CN202310204903A CN116177929A CN 116177929 A CN116177929 A CN 116177929A CN 202310204903 A CN202310204903 A CN 202310204903A CN 116177929 A CN116177929 A CN 116177929A
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- 239000002910 solid waste Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 12
- 235000009566 rice Nutrition 0.000 claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 10
- 239000011733 molybdenum Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 8
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 14
- 241000209094 Oryza Species 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000013590 bulk material Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 239000004595 color masterbatch Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229920001684 low density polyethylene Polymers 0.000 claims description 3
- 239000004702 low-density polyethylene Substances 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 239000013530 defoamer Substances 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 150000003377 silicon compounds Chemical class 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 230000007306 turnover Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0409—Waste from the purification of bauxite, e.g. red mud
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/10—Burned or pyrolised refuse
- C04B18/101—Burned rice husks or other burned vegetable material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2611—Polyalkenes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a solid waste base building template which is mainly prepared from the following raw materials: 15 to 25 parts of composite tailing powder, 5 to 12 parts of rice hull ash, 56 to 89 parts of resin polymer, 0.6 to 1.2 parts of silane coupling agent, 0.8 to 2 parts of lubricant, 1.8 to 2.5 parts of defoaming master batch, 0.5 to 0.9 part of flame retardant, 0.4 to 0.8 part of stabilizer and 0.2 to 0.4 part of antioxidant in parts by weight; the composite tailing powder is formed by compositing molybdenum tailings and red mud according to a mass ratio of 1:1, the fineness is 1000-1200 meshes, and the water content is less than 0.1%. The invention also discloses a preparation method of the solid waste base building template. The composite tailing powder adopted by the invention is formed by compositing molybdenum tailings and red mud, and the molybdenum tailings and the red mud can be put into use after being dried and ground, so that the influence of raw material components on the quality and performance of the product is not required to be considered, and the utilization mode obviously improves the recycling utilization level of the tailings.
Description
Technical Field
The invention relates to a building template, in particular to a building template taking solid waste as a main material and a preparation method thereof.
Background
The large accumulation of tailings not only occupies land and threatens the local ecological environment, but also constitutes a great potential safety hazard locally. How to efficiently utilize the tailings sand for economic construction needs to be explored.
Building templates are one of the common turnover materials in the engineering field, and enterprises purchase huge quantities each year. The current usage amount is more for bamboo system, aluminum alloy system and plastic system templates. The turnover rate of the bamboo boards is low, and a large amount of forest resources are wasted every year; the aluminum alloy plate has higher strength and rigidity, but needs shaping processing and cannot be flexibly cut; the plastic template has low cost and high turnover rate, but the material has poor thermal stability and is easy to deform. In order to meet the development trend of the building industry, the development of the novel building template which is low in cost, stable in performance, high in turnover rate and capable of being freely processed is significant.
Disclosure of Invention
The invention aims to: aiming at overcoming the defects of the prior art, the invention provides the solid waste base building template which has low cost, strong thermal stability, high turnover rate and excellent mechanical property and reasonably utilizes the solid waste resources.
The invention further aims at providing a preparation method of the solid waste-based building template.
The technical scheme is as follows: the invention relates to a solid waste base building template which is mainly prepared from the following raw materials: 15 to 25 parts of composite tailing powder, 5 to 12 parts of rice hull ash, 56 to 89 parts of resin polymer, 0.6 to 1.2 parts of silane coupling agent, 0.8 to 2 parts of lubricant, 1.8 to 2.5 parts of defoaming master batch, 0.5 to 0.9 part of flame retardant, 0.4 to 0.8 part of stabilizer and 0.2 to 0.4 part of antioxidant in parts by weight; the composite tailing powder is formed by compositing molybdenum tailings and red mud according to a mass ratio of 1:1, and is formed into a powder with fineness of 1000-1200 meshes through drying, grinding and screening processes, wherein the water content is less than 0.1%, and the main components are shown in table 1.
Table 1 main ingredients of the composite tailing powder
Preferably, the rice hull ash is white gray powder, the fineness is 400-600 meshes after high grinding, the water content is less than 0.1%, and the main component is SiO 2 。
Preferably, the resin polymer comprises a resin having a density of 0.91 to 0.92g/cm 3 38 to 55 parts of block copolymerized polypropylene with the density of 0.88 to 0.90g/cm 3 5 to 10 parts of low-density polyethylene with the density of 0.92 to 0.93g/cm 3 3 to 6 parts of maleic anhydride grafted modified polypropylene with the density of 0.87 to 0.89g/cm 3 10 to 18 parts by weight of ethylene propylene diene monomer rubber.
Preferably, the silane coupling agent is one or more of epoxy type or amino type.
Preferably, the lubricant comprises an inner lubricant and an outer lubricant, wherein the inner lubricant is one or more of fatty acid amide or organic silicon compound, the amount of the inner lubricant is 0.3-0.8 part, and the amount of the outer lubricant is 0.5-1.2 parts.
Preferably, the density of the defoaming master batch is 1.4-1.45 g/cm 3 The melt flow rate is 15.5-23.2 (g/10 min); the flame retardant is one or more of CAS1309-42-8 and CAS 21645-51-2; the stabilizer is one or more of ultraviolet absorbent or hydroperoxide decomposer, and the antioxidant is one or more of 1010, 168 and 1024 types.
Preferably, the template is a light hollow plate or a reinforced ribbed plate;
the standard length of the light hollow plate is 1830-2440 mm, the width of the light hollow plate is 915-1220 mm, the thickness of the light hollow plate is 15-25 mm, and the volume weight of the light hollow plate is 0.55-0.60 t/m 3 The thickness of the solid parts on the two sides of the outer vertical surface is 10-15 mm, the internal hole patterns are round, rectangular, X-shaped or triangular, and the directions of the holes are longitudinally arranged;
the length of the reinforced ribbed plate standard plate is 1830-2440 mm, and the width is 915-1220 mm, and other sizes can be customized according to engineering requirements; the height of the plate rib is 2-3 cm; the reinforced rib plate is provided with transverse ribs and longitudinal ribs, the standard spacing is 0.46-0.60 m, and the reinforced rib plate can be adjusted according to the field requirement; the thickness of the rib is consistent with the thickness of the plate and is 2-3 mm; the reinforced ribbed slab is provided with special opposite-pull screw holes, and the aperture and the position are set in a shaping mode according to the diameter of the opposite-pull screw and the requirement of a poured component.
The preparation method of the solid waste base building template comprises the following steps:
(1) Drying molybdenum tailings and red mud at 180-200 ℃, compounding according to a mass ratio of 1:1, and grinding to form compound tailings powder with fineness of 1000-1200 meshes;
(2) Uniformly mixing a silane coupling agent and the composite tailing powder in the step (1), and placing the mixture in a high-temperature mixer, and mixing the mixture at 105-115 ℃ for 4-6 min to form a mixture 1;
(3) Drying and grinding rice hull ash of a power plant, and sieving to form 400-600 mesh powder;
(4) Placing the rice hull ash and the resin macromolecule in the step (3) into a high-heat mixer, stirring for 4-6 min at 105-115 ℃, and screening by a vibrating screen to form a mixture 2 with fineness less than 50 meshes;
(5) Placing the mixture 2 in the step (4), the mixture 1 in the step (2), the inner lubricant, the outer lubricant, the defoamer, the flame retardant, the stabilizer and the antioxidant together in a high-temperature cooling machine, and then mixing for 8-10 min to form a mixture 3;
(6) Putting the mixture 3 formed in the step (5) into an internal mixer, heating, mixing and plasticizing for 15-20 min, and stopping stirring when the mixture becomes a bulk material;
(7) Pouring the bulk material in the step (6) into a cone double-feeding system, and extruding particles with the length of 1-3 mm by adopting a single-screw granulating system to obtain a novel solid waste base composite substrate;
(8) Mixing the particles in the step (7) with the color master batch in proportion, drying at 70-90 ℃, pouring into a stirrer for stirring for 5-10 min, and standing for 12-24 h;
(9) Putting the particles in the step (8) into a building template production line, and forming the novel building template based on solid waste through links such as melting, adsorbing, shaping, cutting and the like.
Preferably, the parameters of the cone dual feed system in the step (7) are set as follows: the feeding speed is 150-170 r/min, the extrusion temperature is 175-205 ℃, the screw rotation speed is 350-450 r/min, and the granulating speed is 15-25 r/min;
setting parameters of the template production line in the step (9) as follows: the processing temperature is 200-230 ℃, the screw rotating speed is 150-200 r/min, the extrusion die head temperature is 190-205 ℃, the traction speed of the extrudate is 0.8-2.3 m/min, and the extrudate is molded by a template device after extrusion.
The beneficial effects are that: (1) The composite tailing powder adopted by the invention is formed by compositing molybdenum tailings and red mud, and the molybdenum tailings and the red mud can be put into use after being dried and ground, so that the influence of raw material components on the quality and performance of the product is not required to be considered, and the utilization mode obviously improves the recycling utilization level of the tailings; the novel composite material prepared from the raw materials such as superfine tailing powder, rice hull ash, high polymer resin and the like has high overall strength, high rigidity and high thermal stability, and the comprehensive cost is obviously reduced compared with that of a pure polymer material; the novel building template prepared by the composite material meets the requirements of safety, practicability and economy, has the advantages of high strength, high rigidity, high durability, high turnover rate, capability of being recycled for multiple times and the like, and is suitable for batch production. (2) From the structural design perspective, the template is designed into a hollow plate with the aperture of 15-25 mm, the hollow plate is light in weight and convenient to process, and is suitable for members with smaller lateral pressure of concrete, such as beams, plates and the like; after the reinforced ribbed plate is designed, the overall rigidity and stability of the formwork are improved greatly, and the reinforced ribbed plate is suitable for vertical walls, large-span or high-hydration-heat concrete members.
Detailed Description
The technical scheme of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
Example 1
Drying molybdenum tailings and red mud at 180-200 ℃ and compounding according to a mass ratio of 1:1, and grinding to obtain compound tailing powder, wherein the fineness is controlled to be 1000-1200 meshes, the water content is less than or equal to 0.1%, and the dosage is 20 parts; uniformly mixing 1.2 parts of silane coupling agent and composite tailing powder, placing the mixture in a high-temperature mixer, and mixing the mixture at 105-115 ℃ for 5min to form a mixture 1; taking 8 parts of rice hull ash, drying, grinding, sieving to form 400-600 mesh powder, placing the powder and resin polymer in a high-temperature mixer, stirring for 5min at 105-115 ℃, and sieving by a vibrating screen to form a mixture 2 with fineness less than 50 meshes; the resin macromolecule selects block copolymerized polypropylene, low density polyethylene, maleic anhydride grafted modified polypropylene and ethylene propylene diene monomer, the dosage is 45 parts, 7.5 parts, 4.5 parts and 14 parts respectively. The mixture 1, the mixture 2, 0.8 part of an inner lubricant, 1.2 parts of an outer lubricant, 2.5 parts of an antifoaming agent, 0.9 part of a flame retardant, 0.8 part of a stabilizer and 0.4 part of an antioxidant are placed in a high-temperature refrigerator together, and then are mixed for 8-10 min to form the mixture 3. Putting the mixture 3 into an internal mixer, heating, mixing and plasticizing for 15-20 min, stopping stirring when the mixture becomes a bulk material, pouring the bulk material into a cone double-feeding system, extruding particles with the length of 1-3 mm by adopting a single-screw granulating system, and obtaining a novel solid waste base composite substrate; mixing the particles with the color master batch in proportion, drying at 70-90 ℃, pouring into a stirrer for stirring for 5-10 min, standing for 20h, putting into a template production line, and forming the product with the volume weight of 0.57t/m through links such as melting, adsorption, shaping, cutting and the like 3 A hollow template with the thickness of 15 mm. The water absorption, dimensional change after heating, microcard softening point, surface hardness, unnotched impact strength, flexural strength and flexural modulus of the template were measured according to standard GB/T-1043.1, and the measurement results are shown in Table 2.
Example 2
The method and the raw material consumption are the same as in example 1, and the volume weight is 1.13-1.35 t/m 3 Is a reinforced ribbed plate. According to standard GB/T-1043.1, the water absorption, dimensional change after heating, microcard softening point, surface hardness, unnotched impact strength, flexural strength and flexural modulus of the template were measuredThe results are shown in Table 2.
Example 3
The method and raw material consumption were the same as in example 1, the composite tailing powder consumption was adjusted to 25 parts, the rice hull ash consumption was 12 parts, and the other material consumption and the production method were all unchanged, and the water absorption, the dimensional change rate after heating, the microcard softening point, the surface hardness, the unnotched impact strength, the flexural strength and the flexural modulus of the template were measured according to standard GB/T-1043.1, and the measurement results are shown in Table 2.
Example 4
The method and the raw material consumption are the same as in example 3, and the volume weight is 1.13-1.35 t/m 3 Is a reinforced ribbed plate. The water absorption, dimensional change after heating, microcard softening point, surface hardness, unnotched impact strength, flexural strength and flexural modulus of the templates were measured according to standard GB/T-1043.1, and the measurement results are shown in Table 2.
Table 2 main data statistics for each example
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The solid waste-based building template is characterized by being prepared from the following raw materials: 15 to 25 parts of composite tailing powder, 5 to 12 parts of rice hull ash, 56 to 89 parts of resin polymer, 0.6 to 1.2 parts of silane coupling agent, 0.8 to 2 parts of lubricant, 1.8 to 2.5 parts of defoaming master batch, 0.5 to 0.9 part of flame retardant, 0.4 to 0.8 part of stabilizer and 0.2 to 0.4 part of antioxidant in parts by weight; the composite tailing powder is formed by compositing molybdenum tailings and red mud according to a mass ratio of 1:1, the fineness is 1000-1200 meshes, and the water content is less than 0.1%.
2. The solid waste-based building template of claim 1, wherein: the fineness of the rice hull ash is 400-600 meshes, and the water content is less than 0.1%.
3. The solid waste-based building template of claim 1, wherein: the resin polymer comprises a density of 0.91-0.92 g/cm 3 38 to 55 parts of block copolymerized polypropylene with the density of 0.88 to 0.90g/cm 3 5 to 10 parts of low-density polyethylene with the density of 0.92 to 0.93g/cm 3 3 to 6 parts of maleic anhydride grafted modified polypropylene with the density of 0.87 to 0.89g/cm 3 10 to 18 parts by weight of ethylene propylene diene monomer rubber.
4. The solid waste-based building template of claim 1, wherein: the silane coupling agent is one or more of epoxy type and amino type.
5. The solid waste-based building template of claim 1, wherein: the lubricant comprises an inner lubricant and an outer lubricant, wherein the inner lubricant is one or more of fatty acid amide or organic silicon compounds, the dosage of the inner lubricant is 0.3-0.8 part, and the dosage of the outer lubricant is 0.5-1.2 parts.
6. The solid waste-based building template of claim 1, wherein: the density of the defoaming master batch is 1.4-1.45 g/cm 3 The melt flow rate is 15.5-23.2 (g/10 min); the flame retardant is one or more of CAS1309-42-8 and CAS 21645-51-2; the stabilizer is one or more of ultraviolet absorbent or hydroperoxide decomposer, and the antioxidant is one or more of 1010, 168 and 1024 types.
7. The solid waste-based building template of claim 1, wherein: the template is a light hollow plate or a reinforced ribbed plate;
the standard length of the light hollow plate is 1830-2440 mm, the width of the light hollow plate is 915-1220 mm, the thickness of the light hollow plate is 15-25 mm, the volume weight of the light hollow plate is 0.55-0.60 t/m, the thickness of the solid parts on two sides of the outer vertical surface is 10-15 mm, the internal hole pattern is round, rectangular, X-shaped or triangular, and the opening direction is longitudinally arranged;
the length of the reinforced ribbed plate standard plate is 1830-2440 mm, the width is 915-1220 mm, and the height of the plate rib is 2-3 cm; the reinforced rib plate is provided with transverse ribs and longitudinal ribs, the standard interval is 0.46-0.60 m, the rib thickness is consistent with the plate thickness, and the thickness is 2-3 mm; the reinforced ribbed slab is provided with special opposite-pull screw holes, and the aperture and the position are set in a shaping mode according to the diameter of the opposite-pull screw and the requirement of a poured component.
8. The method for preparing the solid waste-based building template according to any one of claims 1 to 7, characterized by comprising the following steps:
(1) Drying molybdenum tailings and red mud at 180-200 ℃, compounding according to a mass ratio of 1:1, and grinding to form compound tailings powder with fineness of 1000-1200 meshes;
(2) Uniformly mixing a silane coupling agent and the composite tailing powder in the step (1), and placing the mixture in a high-temperature mixer, and mixing the mixture at 105-115 ℃ for 4-6 min to form a mixture 1;
(3) Drying and grinding rice hull ash of a power plant, and sieving to form 400-600 mesh powder;
(4) Placing the rice hull ash and the resin macromolecule in the step (3) into a high-heat mixer, stirring for 4-6 min at 105-115 ℃, and screening by a vibrating screen to form a mixture 2 with fineness less than 50 meshes;
(5) Placing the mixture 2 in the step (4), the mixture 1 in the step (2), the inner lubricant, the outer lubricant, the defoamer, the flame retardant, the stabilizer and the antioxidant together in a high-temperature cooling machine, and then mixing for 8-10 min to form a mixture 3;
(6) Putting the mixture 3 formed in the step (5) into an internal mixer, heating, mixing and plasticizing for 15-20 min, and stopping stirring when the mixture becomes a bulk material;
(7) Pouring the bulk material in the step (6) into a cone double-feeding system, and extruding particles with the length of 1-3 mm by adopting a single-screw granulating system to obtain a novel solid waste base composite substrate;
(8) Mixing the particles in the step (7) with the color master batch in proportion, drying at 70-90 ℃, pouring into a stirrer for stirring for 5-10 min, and standing for 12-24 h;
(9) Putting the particles in the step (8) into a building template production line, and forming the novel building template based on solid waste through links such as melting, adsorbing, shaping, cutting and the like.
9. The method for preparing the solid waste-based building template according to claim 8, wherein the method comprises the following steps:
and (7) setting parameters of a cone double-feeding system as follows: the feeding speed is 150-170 r/min, the extrusion temperature is 175-205 ℃, the screw rotation speed is 350-450 r/min, and the granulating speed is 15-25 r/min;
setting parameters of the template production line in the step (9) as follows: the processing temperature is 200-230 ℃, the screw rotating speed is 150-200 r/min, the extrusion die head temperature is 190-205 ℃, the traction speed of the extrudate is 0.8-2.3 m/min, and the extrudate is molded by a template device after extrusion.
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| CN202310204903.0A CN116177929A (en) | 2023-03-06 | 2023-03-06 | Solid waste base building template and preparation method thereof |
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